platform/x86: dell-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro

...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index a7b141992cb3f8f92e2d215bd2f610901d62df22..2a68f59d2228c921e8609ccba97832e07cbaa582 100644 (file)
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -636,19 +636,7 @@ static int dell_debugfs_show(struct seq_file *s, void *data)
 
        return 0;
 }
-
-static int dell_debugfs_open(struct inode *inode, struct file *file)
-{
-       return single_open(file, dell_debugfs_show, inode->i_private);
-}
-
-static const struct file_operations dell_debugfs_fops = {
-       .owner = THIS_MODULE,
-       .open = dell_debugfs_open,
-       .read = seq_read,
-       .llseek = seq_lseek,
-       .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(dell_debugfs);
 
 static void dell_update_rfkill(struct work_struct *ignored)
 {